{
  "annotation_id": "8fe716b0-e42a-4e9b-aa31-d7df4039d734",
  "date_created": "2026-03-02T18:00:21.711000Z",
  "date_modified": "2026-03-02T18:00:21.711000Z",
  "file_hash": "65ad13fd162a5bab46ba8cb9130d0c981d2499ca7cfa659c5ccb74200d2a70b8",
  "private": false,
  "record": {
    "abstract": "The binding energy of nuclear matter including exchange and pionic effects is\ncalculated in a quark-meson coupling model with massive constituent quarks. As\nin the case with elementary nucleons in QHD, exchange effects are repulsive.\nHowever, the coupling of the mesons directly to the quarks in the nucleons\nintroduces a new effect on the exchange energies that provides an extra\nrepulsive contribution to the binding energy. Pionic effects are not small.\nImplications of such effects on observables are discussed.",
    "arxiv_id": "nucl-th/9805019",
    "authors": [
      "M. E. Bracco",
      "G. Krein",
      "M. Nielsen"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1016/S0370-2693(98)00654-6",
    "journal_ref": "Phys.Lett. B432 (1998) 258-265",
    "title": "Quark-meson coupling model with constituent quarks: Exchange and pionic   effects",
    "url": "https://arxiv.org/abs/nucl-th/9805019"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "430c58a5-1421-472b-b9de-a8de901208d0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}